<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <script>
        const article = {
            title: "文章标题",
            content: "文章内容",
            comments: [{
                content: "评论1",
                user: {
                    id: 1,
                    name: "用户名1"
                }
            }, {
                content: "评论2",
                user: {
                    id: 2,
                    name: "用户名2"
                }
            }]
        }

        //解构出第二条评论的用户名和评论内容
        // name:"用户名2"  content:"评论2"

        // const {
        //     comments: [, {
        //         content,
        //         user: {
        //             name
        //         }
        //     }]
        // } = article;

        // const [, {
        //     content,
        //     user: {
        //         name
        //     }
        // }] = article.comments;

        const {
            content,
            user: {
                name
            }
        } = article.comments[1]

        console.log(content, name)
    </script>
</body>

</html>